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