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