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