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