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