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