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