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