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