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