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