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