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