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