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