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