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