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