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