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