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