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