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