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)(11,15)(12,14)(13,16)(19,24)(20,23)(25,26,29,28)(27,30,31,32)(2,6)(4,8)(9,10,12,14)(11,13,16,15)(17,18,22,21)(19,23,24,20)(26,28)(27,31)(17,19,22,24)(18,23,21,20)(25,27)(26,30)(28,32)(29,31)(1,3,5,7)(2,4,6,8)(9,11)(10,13)(12,16)(14,15)(17,20)(18,19)(21,24)(22,23)(1,4)(2,7)(3,6)(5,8)(9,10)(11,13)(12,14)(15,16)(17,21,22,18)(19,20,24,23)(25,28,29,26)(27,32,31,30)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.