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