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