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