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