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