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