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