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