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