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