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