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