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