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