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