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