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