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