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