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