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