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