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