Looking at
https://www.ukraillog.co.uk/ (pop "Ely Papworth Sidings" in the "depot" section of the search at the bottom of the page)
Class 43
FGW Blue: 017, 020, 024, 174, 190, 191,
GWR Green: 170
Intercity 125 Blue and Yellow: 206, 312
(EMR Branding) LNER Full Red: 238
(EMR Branding) LNER Red and Silver: 306, 307, 314, 316, 317, 318, 320,
LNER Red & Silver: 295, 305, 309, 310, 311, 315, 319, 367
Class 153
Northern Blue, Purple & Grey - 301, 304, 307, 315, 317, 328, 351, 352, 378
(EMR Branded) Blue, Red & Orange - 308, 319, 355, 357, 470, 473, 497, 498
Class 180 - 109 to 113 (All ex-EMR)
Class 317 - 501, 506, 882, Abellio Greater Anglia White, 882 with red doors.
Class 465 - 236, 237, 238, 240, 243, 244, 245, 248, 249, 250, all SE White, Black & Navy with Blue Doors