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