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