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