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