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