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