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