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