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