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