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