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