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