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