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