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