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