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