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