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