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