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