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