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