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