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