The Organization of American States is expected to adopt a resolution Monday calling on Haiti's military-dominated government to reschedule elections canceled last Sunday but noting the OAS charter's strictures against interfering in member countries' internal affairs.

Diplomatic sources said the theme and most of the language of the resolution were worked out yesterday in private meetings among various members, including the United States.

They added that most of the 31 OAS members appear ready to vote for the resolution at Monday's emergency meeting of the Permanent Council, which also is expected to hear a report on the Haitian situation from Col. Herard Abraham, foreign minister in Lt. Gen. Henri Namphy's provisional government.

The aim, the sources said, is to communicate to Namphy and the Haitian army widespread concern in the hemisphere about violence and terrorism to which would-be voters were subjected last Sunday.

However, the sources added, the resolution also seeks to reassure Haitians that neither the OAS nor its individual members plans to intervene in Haiti's political conflict.

For the last week, Haiti has been swept by speculation that the United States intends to send military forces there or seek intervention by an OAS peace-keeping force.

However, Reagan administration officials have denied publicly and privately that they are contemplating such a move and have noted that the idea of military intervention arouses strong, emotional opposition throughout Latin America.

State Department spokesman Charles E. Redman announced yesterday that the United States is withdrawing all nonessential employes and all dependents, about 150 people, from the U.S. Embassy in Port-au-Prince "in view of the unsettled political situation." He added that about 80 diplomatic officers would remain.

The administration, which had supported the Namphy government as the best hope of moving Haiti toward democracy, has sought this week to pressure Namphy into rescheduling quick, honest and safe elections. The sources described the OAS resolution, which has strong U.S. backing, as one step that administration policy-makers hope will help to achieve that end.

According to the sources, the resolution will deplore loss of life in Sunday's violence, call for punishment of those responsible and urge the government to get on with the process of free elections for a president and legislature.

Namphy, who ordered disbanding of the commission that had tried to arrange the voting, has been calling on Haitian factions to cooperate in establishing a new electoral mechanism, while most opposition forces have been demanding restoration of the electoral commission.

The sources said the OAS resolution will not address that dispute except to say elections should be carried out in accordance with "constitutional process."