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