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