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