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