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