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