One vertex per element, one color per generator, with an edge from x to x·s.
(2,4)(6,8)(9,10)(11,15)(12,14)(13,16)(18,23)(20,24)(25,26,29,28)(27,30,31,32)(3,7)(6,8)(9,11,14,13)(10,15,12,16)(17,18,22,23)(19,24,21,20)(27,31)(30,32)(1,2,5,4)(3,6,7,8)(9,11,14,13)(10,16,12,15)(17,19,22,21)(18,24,23,20)(25,27,29,31)(26,30,28,32)(1,3,5,7)(2,6,4,8)(9,12,14,10)(11,15,13,16)(17,20)(18,19)(21,23)(22,24)(1,4,5,2)(3,8,7,6)(9,13,14,11)(10,15,12,16)(17,21,22,19)(18,24,23,20)(25,28,29,26)(27,32,31,30)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.