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