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