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