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