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