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