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