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