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