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