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