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