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