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