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