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