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