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