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