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