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