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