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