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