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