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