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