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