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