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