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