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