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