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