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)(20,27)(23,28)(24,29)(26,31)(30,32)(1,3,5,8)(2,6,4,7)(9,11,14,10)(12,15,13,16)(9,12)(10,15)(11,16)(13,14)(17,18,20,22,21,24,27,29)(19,23,26,28,25,30,31,32)(1,4,5,2)(3,6,8,7)(9,13,14,12)(10,16,11,15)(17,19,21,25)(18,23,24,30)(20,26,27,31)(22,28,29,32)(10,11)(15,16)(18,24)(19,25)(22,29)(26,31) 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.