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