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