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