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