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