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