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