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