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