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