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