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