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