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