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