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