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