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