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