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