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