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