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)(24,39)(30,42)(32,46)(34,40)(38,43)(2,6)(7,8)(11,16)(13,15)(17,18,21,25)(19,28,27,23)(20,32,31,46)(22,36,35,26)(24,40,39,34)(29,44,33,47)(30,38,42,43)(37,45,41,48)(1,3,5,4)(2,7,6,8)(9,11,12,16)(10,13,14,15)(17,19,21,27)(18,23,25,28)(20,33,31,29)(22,30,35,42)(24,41,39,37)(26,38,36,43)(32,44,46,47)(34,48,40,45)(1,4,5,3)(2,8,6,7)(10,14)(13,15)(17,20,22,34,21,31,35,40)(18,24,26,32,25,39,36,46)(19,29,30,45,27,33,42,48)(23,37,38,47,28,41,43,44)(2,6)(7,8)(19,27)(20,31)(23,28)(24,39)(30,42)(32,46)(34,40)(38,43) 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.