Your question is multipart, and I will try to address each part seperately.
1) Although there are no "standardized" symbols, two sources you might research are:
A. ANSI/TIA/EIA-606-A, Administration Standard for Commercial Telecommunications Infrastructure, Dtd May 16, 2002.
B. Fiber Optic Reference Guide, by David R. Goff, third edition. This book is published by Focal Press
2) Optical Fiber color coding is addressed in ANSI/TIA/EIA-598-A, Optical Fiber Cable Color Coding.
3) AS for the labeling, administration, etc., consult ANSI/TIA/EIA-606-A listed above.
All the ANSI/TIA/EIA Documents shown are available from:
Global Engineering Documents (800) 854-7179
If you need further assistance or clarification, feel free to contact me direct at larry.hamlin@2asc.com.