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