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