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)(18,20)(19,23)(25,26)(27,28)(29,32)(30,31)(1,2,5,6)(3,4,7,8)(10,13)(14,15)(17,18,21,20)(19,24,23,22)(26,31)(28,32)(2,6)(3,7)(9,10,12,13)(11,14,16,15)(17,19,21,23)(18,22,20,24)(25,27,30,29)(26,32,31,28)(1,3,5,7)(2,4,6,8)(9,10)(11,14)(12,13)(15,16)(17,19)(18,22)(20,24)(21,23)(25,28,30,32)(26,27,31,29)(1,4)(2,7)(3,6)(5,8)(9,11,12,16)(10,14,13,15)(17,20,21,18)(19,24,23,22)(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.