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