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)(19,21)(20,28)(22,23)(24,26)(25,29)(27,32)(30,31)(33,34,39,42)(35,40,36,41)(37,47,48,38)(43,44,45,46)(2,6)(7,9)(8,12)(15,16)(18,23)(20,29)(21,24)(27,30)(33,35,39,36)(34,40,42,41)(37,43,48,45)(38,46,47,44)(3,10)(7,9)(11,13)(15,16)(18,23)(19,26)(25,28)(27,30)(35,36)(40,41)(43,45)(44,46) involution — undirected(1,3)(2,7)(4,13)(5,10)(6,9)(8,16)(11,14)(12,15)(17,19,22,26)(18,24,23,21)(20,30,29,27)(25,31,28,32)(33,36,39,35)(34,41,42,40)(37,43,48,45)(38,46,47,44)(1,4)(2,8)(3,11)(5,14)(6,12)(7,15)(9,16)(10,13)(17,20,22,29)(18,25,23,28)(19,27,26,30)(21,31,24,32)(33,37)(34,38)(35,43)(36,45)(39,48)(40,46)(41,44)(42,47)(1,2)(3,7)(4,8)(5,6)(9,10)(11,15)(12,14)(13,16)(17,21,22,24)(18,26,23,19)(20,31,29,32)(25,30,28,27)(33,38)(34,37)(35,44)(36,46)(39,47)(40,45)(41,43)(42,48)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.