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)(19,23)(21,24)(25,26)(27,30)(28,31)(29,32)(1,2,4,5)(3,6,7,8)(9,11)(10,13)(12,15)(14,16)(17,18)(19,24)(20,22)(21,23)(25,27,28,29)(26,30,31,32)(1,3)(2,6)(4,7)(5,8)(11,15)(13,16)(17,19,20,23)(18,21,22,24)(26,31)(30,32)(2,5)(3,7)(18,22)(21,24)(26,32)(27,29)(30,31) involution — undirectedA 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.