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