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