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