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