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