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