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