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