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