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