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