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)(17,18,20,22)(19,23,24,21)(25,26,29,28)(27,30,32,31)(1,3,5,4)(2,6,8,7)(9,10,14,13)(11,16,15,12)(17,18)(19,21)(20,22)(23,24)(25,26,29,28)(27,31,32,30)(9,11)(10,12)(13,16)(14,15)(25,27,29,32)(26,30,28,31)(1,2)(3,6)(4,7)(5,8)(9,12,14,16)(10,15,13,11)(25,28,29,26)(27,31,32,30)(1,4,5,3)(2,7,8,6)(9,13,14,10)(11,16,15,12)(17,19,20,24)(18,21,22,23)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.