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