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