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