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