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