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