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