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