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