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