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