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