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