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