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