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