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