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