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