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