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