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