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