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