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