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