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