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