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