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