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