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