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)(17,18,22,23)(19,27,28,24)(20,25,29,32)(21,30,31,26)(33,34)(35,40)(36,37)(38,46)(39,41)(42,48)(43,45)(44,47)(3,9)(7,13)(10,15)(14,16)(18,23)(20,29)(24,27)(26,30)(33,35,39,36)(34,40,41,37)(38,43,48,44)(42,47,46,45)(2,6)(7,13)(8,11)(14,16)(18,23)(19,28)(25,32)(26,30)(34,41)(35,36)(42,46)(43,44) involution — undirected(1,2)(3,7)(4,8)(5,6)(9,13)(10,14)(11,12)(15,16)(17,19)(18,24)(20,30)(21,25)(22,28)(23,27)(26,29)(31,32)(33,36,39,35)(34,37,41,40)(38,44,48,43)(42,45,46,47)(1,3,5,9)(2,7,6,13)(4,10,12,15)(8,14,11,16)(17,20)(18,25)(19,26)(21,27)(22,29)(23,32)(24,31)(28,30)(33,37)(34,36)(35,41)(38,47)(39,40)(42,43)(44,46)(45,48)(1,4)(2,8)(3,10)(5,12)(6,11)(7,14)(9,15)(13,16)(17,21,22,31)(18,26,23,30)(19,25,28,32)(20,24,29,27)(33,38,39,48)(34,42,41,46)(35,43,36,44)(37,45,40,47)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.