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