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