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