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