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