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