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