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