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