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