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