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)(17,18,23,22)(19,24,26,21)(20,25,30,29)(27,28,32,31)(1,3,5,4)(2,6,8,7)(9,11)(10,13)(12,15)(14,16)(17,19)(18,24)(20,27)(21,22)(23,26)(25,28)(29,31)(30,32)(1,3,5,4)(2,7,8,6)(10,14)(11,15)(17,20)(18,25)(19,27)(21,31)(22,29)(23,30)(24,28)(26,32)(10,14)(13,16)(17,21,18,26,23,24,22,19)(20,28,25,27,30,31,29,32)(1,4,5,3)(2,7,8,6)(17,18,23,22)(19,24,26,21)(20,29,30,25)(27,31,32,28)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.