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