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