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