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