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