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