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