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