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