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