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