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