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