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