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