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)(19,28,32,24)(20,33,36,41)(21,37)(22,26)(23,27)(25,35,40,34)(29,44)(30,39,31,43)(38,46)(42,45)(47,48)(1,3,6,14)(2,7,10,16)(4,12,5,13)(8,15,9,11)(17,19,23,32)(18,24,27,28)(20,29,36,47)(21,30,22,31)(25,38,40,42)(26,39,37,43)(33,48,41,44)(34,45,35,46)(2,8)(4,5)(7,15)(9,10)(11,16)(12,13)(17,20)(18,25)(19,29)(21,35)(22,34)(23,36)(24,38)(26,41)(27,40)(28,42)(30,46)(31,45)(32,47)(33,37)(39,44)(43,48) involution — undirected(1,4,6,5)(2,8,10,9)(3,12,14,13)(7,15,16,11)(17,21,23,22)(18,26,27,37)(19,30,32,31)(20,34,36,35)(24,39,28,43)(25,33,40,41)(29,45,47,46)(38,48,42,44)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.