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