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