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