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