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)(17,18,23,19)(20,25,30,28)(21,27,31,24)(22,29,32,26)(2,6)(7,8)(9,11)(10,13)(12,15)(14,16)(17,19,23,18)(20,28,30,25)(21,24,31,27)(22,26,32,29)(1,3,5,4)(2,7,6,8)(17,20,22,31,23,30,32,21)(18,24,26,25,19,27,29,28)(1,3,5,4)(2,7,6,8)(11,15)(13,16)(17,21,32,30,23,31,22,20)(18,25,29,24,19,28,26,27)(1,4,5,3)(2,7,6,8)(20,30)(21,31)(24,27)(25,28)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.