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