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