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