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