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