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