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