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