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