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