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