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