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