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