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