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