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