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