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