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