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