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