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