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