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