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