One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,6)(3,5,7,8)(9,10,13,12)(11,14,15,16)(17,18,22,19)(20,25,28,23)(21,24,30,26)(27,32,29,31)(34,35)(36,43)(37,45)(47,48)(11,15)(14,16)(18,19)(23,25)(24,26)(31,32)(33,34,38,35)(36,39,43,41)(37,42,45,40)(44,48,46,47)(9,11)(10,14)(12,16)(13,15)(17,19,22,18)(20,25,28,23)(21,24,30,26)(27,31,29,32)(33,35,38,34)(36,39,43,41)(37,40,45,42)(44,48,46,47)(1,2)(3,5)(4,6)(7,8)(17,20)(18,23)(19,25)(21,29)(22,28)(24,32)(26,31)(27,30)(33,36)(34,39)(35,41)(37,46)(38,43)(40,48)(42,47)(44,45) involution — undirected(1,3,4,7)(2,5,6,8)(9,12,13,10)(11,16,15,14)(17,21)(18,24)(19,26)(20,27)(22,30)(23,31)(25,32)(28,29)(33,37,38,45)(34,40,35,42)(36,44,43,46)(39,47,41,48)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.