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