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