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