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)(19,21,26,24)(20,25,28,30)(27,29,32,31)(33,34,38,35)(36,39,43,41)(37,42,45,40)(44,47,48,46)(2,5)(7,9)(8,13)(14,15)(18,23)(20,28)(21,24)(27,32)(33,34,38,35)(36,41,43,39)(37,42,45,40)(44,46,48,47)(4,12)(8,13)(10,16)(14,15)(18,23)(19,26)(20,28)(29,31)(34,35)(36,43)(40,42)(44,48) involution — undirected(1,3,6,11)(2,7,5,9)(4,10,12,16)(8,14,13,15)(17,19)(18,24)(20,27)(21,23)(22,26)(25,31)(28,32)(29,30)(33,35,38,34)(36,41,43,39)(37,42,45,40)(44,47,48,46)(1,4)(2,8)(3,10)(5,13)(6,12)(7,14)(9,15)(11,16)(17,20)(18,25)(19,27)(21,29)(22,28)(23,30)(24,31)(26,32)(33,36)(34,39)(35,41)(37,44)(38,43)(40,46)(42,47)(45,48) involution — undirected(1,5,6,2)(3,9,11,7)(4,13,12,8)(10,15,16,14)(17,21,22,24)(18,19,23,26)(20,29,28,31)(25,27,30,32)(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.