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