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