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