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