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