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