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