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