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