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