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