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)(17,18,23,24)(19,25,21,20)(22,26,30,31)(27,32,29,28)(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)(18,24)(20,25)(26,31)(28,32)(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)(17,19,23,21)(18,25,24,20)(22,27,30,29)(26,32,31,28)(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)(17,20)(18,19)(21,24)(22,28)(23,25)(26,27)(29,31)(30,32)(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)(17,21,23,19)(18,20,24,25)(22,27,30,29)(26,32,31,28)(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)(17,22,23,30)(18,26,24,31)(19,27,21,29)(20,28,25,32)(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.