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