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