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