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