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