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