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