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