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