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