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