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)(11,13)(12,14)(15,16)(17,18,22,23)(19,20,24,28)(21,25,30,31)(26,27,32,29)(33,34)(35,41)(36,40)(37,38)(39,43)(42,47)(44,45)(46,48)(1,3,4,7)(2,5,6,8)(11,15)(13,16)(18,23)(19,24)(25,31)(26,32)(34,37)(39,41)(40,45)(46,47)(2,6)(5,8)(9,10,12,14)(11,13,15,16)(17,19)(18,20)(21,26)(22,24)(23,28)(25,27)(29,31)(30,32)(33,35,38,43)(34,39,37,41)(36,42,44,48)(40,46,45,47)(1,2)(3,5)(4,6)(7,8)(9,10)(11,13)(12,14)(15,16)(17,20)(18,24)(19,23)(21,29)(22,28)(25,26)(27,30)(31,32)(33,36)(34,40)(35,42)(37,45)(38,44)(39,46)(41,47)(43,48) involution — undirected(1,3)(2,5)(4,7)(6,8)(9,11)(10,13)(12,15)(14,16)(17,21)(18,25)(19,26)(20,27)(22,30)(23,31)(24,32)(28,29)(33,37,38,34)(35,41,43,39)(36,40,44,45)(42,46,48,47)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.