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