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