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