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