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