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