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