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