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