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