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