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