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