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