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