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