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