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