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