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