GroupPresentationsGPL( grname )
GroupPresentationsGPL( grname ) returns a list of all presentations of the group with name grname. grname is expected to be a string.
gap> m24pres := GroupPresentationsGPL( "M24"); [ GroupPresentationGPL( "M24", 1 ), GroupPresentationGPL( "M24", 2 ) ]