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