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