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