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