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