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