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