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