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