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