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