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