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