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