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)(11,16,13,15)(18,19)(20,24)(25,26,30,32)(27,29,31,28)(9,11,14,13)(10,15,12,16)(17,18,21,19)(20,22,24,23)(25,27,30,31)(26,28,32,29)(11,13)(15,16)(17,18,21,19)(20,23,24,22)(25,28,30,29)(26,31,32,27)(1,3,5,8)(2,6,4,7)(9,12,14,10)(11,15,13,16)(17,19,21,18)(20,23,24,22)(25,29,30,28)(26,31,32,27)(1,4,5,2)(3,7,8,6)(9,13,14,11)(10,15,12,16)(17,20)(18,22)(19,23)(21,24)(25,26)(27,28)(29,31)(30,32)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.