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