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