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