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