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)(17,18,22,25)(19,23,20,27)(21,24,30,29)(26,31,28,32)(33,34,40,43)(35,38,42,48)(36,45,47,41)(37,39,46,44)(1,3,6,12)(2,7,9,5)(4,11,14,10)(8,13,16,15)(17,18)(19,23)(20,27)(21,24)(22,25)(26,31)(28,32)(29,30)(33,35,40,42)(34,38,43,48)(36,44,47,39)(37,41,46,45)(1,4)(2,8)(3,10)(5,13)(6,14)(7,15)(9,16)(11,12)(17,19,22,20)(18,23,25,27)(21,26,30,28)(24,31,29,32)(33,36,40,47)(34,41,43,45)(35,44,42,39)(37,38,46,48)(1,4)(2,8)(3,11)(5,15)(6,14)(7,13)(9,16)(10,12)(17,18)(19,23)(20,27)(21,29)(22,25)(24,30)(26,32)(28,31)(33,37)(34,39)(35,41)(36,38)(40,46)(42,45)(43,44)(47,48) involution — undirected(1,3)(2,5)(4,10)(6,12)(7,9)(8,13)(11,14)(15,16)(17,20,22,19)(18,23,25,27)(21,28,30,26)(24,31,29,32)(33,38)(34,42)(35,43)(36,46)(37,47)(39,41)(40,48)(44,45)(1,5)(2,3)(4,13)(6,7)(8,10)(9,12)(11,16)(14,15)(17,21,22,30)(18,24,25,29)(19,26,20,28)(23,31,27,32)(33,39)(34,37)(35,36)(38,41)(40,44)(42,47)(43,46)(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.