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