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