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