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