One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(6,8)(9,10,13,15)(11,16,14,12)(17,18,22,20)(19,21,24,23)(9,11)(10,12)(13,14)(15,16)(17,18,22,20)(19,23,24,21)(25,26,28,30)(27,29,31,32)(9,10)(11,16)(12,14)(13,15)(17,19,22,24)(18,23,20,21)(25,26)(27,29)(28,30)(31,32)(1,2)(3,6)(4,5)(7,8)(9,12,13,16)(10,14,15,11)(17,20,22,18)(19,21,24,23)(1,3,4,7)(2,6,5,8)(9,10)(11,12)(13,15)(14,16)(17,21)(18,19)(20,24)(22,23)(25,27,28,31)(26,29,30,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.