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