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