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