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)(17,18,22,20)(19,25,27,23)(21,24,30,28)(26,32,29,31)(34,36)(35,40)(38,46)(45,48)(1,3,7,5)(2,8,6,10)(4,11,12,14)(9,15,13,16)(17,19)(18,23)(20,25)(21,29)(22,27)(24,32)(26,30)(28,31)(33,34,39,36)(35,42,40,37)(38,41,46,44)(43,48,47,45)(4,12)(9,13)(11,14)(15,16)(18,20)(23,25)(24,28)(31,32)(33,35)(34,37)(36,42)(38,43)(39,40)(41,45)(44,48)(46,47) involution — undirected(1,4)(2,9)(3,11)(5,14)(6,13)(7,12)(8,15)(10,16)(17,20,22,18)(19,25,27,23)(21,24,30,28)(26,31,29,32)(33,36,39,34)(35,42,40,37)(38,44,46,41)(43,48,47,45)(1,5,7,3)(2,8,6,10)(4,11,12,14)(9,16,13,15)(17,21)(18,24)(19,26)(20,28)(22,30)(23,31)(25,32)(27,29)(33,37,39,42)(34,40,36,35)(38,45,46,48)(41,47,44,43)(1,6,7,2)(3,10,5,8)(4,13,12,9)(11,16,14,15)(17,19)(18,23)(20,25)(21,29)(22,27)(24,32)(26,30)(28,31)(33,38)(34,41)(35,43)(36,44)(37,45)(39,46)(40,47)(42,48)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.