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