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