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