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