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