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