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