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