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