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