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