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