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