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