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