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