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