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