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