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