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