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