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