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