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