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