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