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