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